#==========================================================================
#
#   Copyright NumFOCUS
#
#   Licensed under the Apache License, Version 2.0 (the "License");
#   you may not use this file except in compliance with the License.
#   You may obtain a copy of the License at
#
#          http://www.apache.org/licenses/LICENSE-2.0.txt
#
#   Unless required by applicable law or agreed to in writing, software
#   distributed under the License is distributed on an "AS IS" BASIS,
#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#   See the License for the specific language governing permissions and
#   limitations under the License.
#
#==========================================================================*/

import itk
have_numpy = True
try:
    import numpy as np
except ImportError:
    have_numpy = False

if have_numpy:
    Dimension = 2
    PixelType = itk.UC
    ImageType = itk.Image[PixelType, Dimension]
    image = ImageType.New()

    new_direction = np.rot90(np.eye(Dimension))
    image.SetDirection(new_direction)
    direction = itk.array_from_matrix(image.GetDirection())
    assert(np.array_equal(new_direction, direction))
